CN105891702A - General type multichannel testing device for comprehensive functions of flexible printed circuit board (FPC) - Google Patents
General type multichannel testing device for comprehensive functions of flexible printed circuit board (FPC) Download PDFInfo
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- CN105891702A CN105891702A CN201610521859.6A CN201610521859A CN105891702A CN 105891702 A CN105891702 A CN 105891702A CN 201610521859 A CN201610521859 A CN 201610521859A CN 105891702 A CN105891702 A CN 105891702A
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- circuit board
- fpc
- flexible circuit
- multichannel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2834—Automated test systems [ATE]; using microprocessors or computers
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- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses a general type multichannel testing device for comprehensive functions of a flexible printed circuit board (FPC). The general type multichannel testing device comprises a multichannel selective switch board, a multichannel signal generator, a measuring unit, a single chip microcomputer processing module, a liquid crystal display and a computer. The multichannel selective switch board is connected with the multichannel signal generator and the measuring unit, the liquid crystal display is connected with the multichannel signal generator and the measuring unit through the single chip microcomputer processing module, the computer is connected with the single chip microcomputer processing module through an RS232 serial port and a USB communication interface, and the computer is provided with software and package testing projects. The general type multichannel testing device achieves function test of all elements of the FPC. Due to the fact that the computer is provided with the software and the package testing projects, FPC test becomes general, and a worker in site can change testing step parameters to enable the general type multichannel testing device to be adaptable to type change. The general type multichannel testing device shortens a developing period, is convenient to maintain and improves the test covering rate, accuracy and stability.
Description
Technical field
The present invention relates to the field of flexible PCB dedicated tester instruments and meters, particularly relate to a kind of universal multichannel flexible circuit board FPC comprehensive function test device.
Background technology
Along with consumer electronics product minimizes day by day, promoting flexible PCB (FPC) field the most constantly to rise, integrated for FPC electronic devices and components kind, quantity are being continuously increased, and test coverage that FPC is dispatched from the factory by client, precision, stability are more and more higher.
FPC tests existing method to be had: range estimation, ICT test, special FPC test.
Product appearance is only detected by range estimation, can not discovery circuit functional characteristic the most intact, and artificial range estimation efficiency low, easy is surveyed by mistake, test leakage, and cost high.
ICT test develops together with hard circuit board, ripe to passive electronic component test and comparison.But not adapting to the demand that flexible PCB test approaches is many, test miniaturization, general purpose I CT test equipment is huge, and cost is high.
Special FPC tests, and develops special test system just for a kind of FPC, and FPC upgrading or change need to develop the hardware and software of test system again, and duplication of labour workload is big, cycle length, difficult in maintenance, affect client's use.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of universal multichannel flexible circuit board FPC comprehensive function test device, mainly on the basis of special FPC tests, test event is become step one by one by software encapsulation, different FPC machine tests is called corresponding testing procedure one by one by computer configuration software and packaging and testing project and can be tested, and can significantly shorten the construction cycle, improve test coverage, precision, stability.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of universal multichannel flexible circuit board FPC comprehensive function test device, switchboard is selected including multiplexer channel, multi-channel signals generator and measuring unit, single chip processing module, liquid crystal display and computer, described multiplexer channel selects switchboard to be connected with multi-channel signals generator and measuring unit, described liquid crystal display is connected with multi-channel signals generator and measuring unit by single chip processing module, described computer is connected with single chip processing module with USB communication interface by RS232 serial ports, wherein, described computer is configured with software and packaging and testing project.
In a preferred embodiment of the present invention, described single chip processing module uses 32 ARM single-chip microcomputers.
In a preferred embodiment of the present invention, described liquid crystal display uses 12864 liquid crystal displays.
In a preferred embodiment of the present invention, described universal multichannel flexible circuit board FPC comprehensive function test device also includes that constant-current source and instrument amplifier, described constant-current source and instrument amplifier are arranged at multi-channel signals generator and measuring unit is interior and select switchboard to be connected with multiplexer channel respectively.
In a preferred embodiment of the present invention, in described computer the menu of software of configuration include switchboard self-inspection SWcheck, look for a SearchPin, open short circuit study LearnOS, step debugging Debug, waveform check LookWave, start Start, reset Stop and import and export step.
In a preferred embodiment of the present invention, in described computer, the packaging and testing project of configuration is made up of sequence number, step name, standard value, measured value, upper percentage %, lower percentage %, high point, low spot, time delay, pattern, ratio K, skew B, average P, special T, high point 2 and low spot 2 16 parameters altogether.
In a preferred embodiment of the present invention, in described computer, the function of the packaging and testing project of configuration also includes PgUp page up, OneStep single step, Save preserves one page under step, PgDown, Inport imports, Export derives, Start starts, Stop resets.
The invention has the beneficial effects as follows: the one universal multichannel flexible circuit board FPC comprehensive function test device of the present invention, the functional test of the various components and parts of FPC can be realized, and computer is configured with software and packaging and testing project, FPC test all-purpose, field personnel by adapting to the change of machine to the amendment of testing procedure parameter, shorten the construction cycle, easy to maintenance, improve test coverage, precision, stability.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structured flowchart of a preferred embodiment of a kind of universal multichannel flexible circuit board FPC comprehensive function of present invention test device；
Fig. 2 is software and the menu screen of packaging and testing project in computer.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
As it is shown in figure 1, the embodiment of the present invention includes:
A kind of universal multichannel flexible circuit board FPC comprehensive function test device, switchboard is selected including multiplexer channel, multi-channel signals generator and measuring unit, single chip processing module, liquid crystal display and computer, described multiplexer channel selects switchboard to be connected with multi-channel signals generator and measuring unit, described liquid crystal display is connected with multi-channel signals generator and measuring unit by single chip processing module, described computer is connected with single chip processing module with USB communication interface by RS232 serial ports, wherein, described computer is configured with software and packaging and testing project.
Further, with type multichannel flexible circuit board FPC comprehensive function test device, described also includes that constant-current source and instrument amplifier, described constant-current source and instrument amplifier are arranged at multi-channel signals generator and measuring unit is interior and select switchboard to be connected with multiplexer channel respectively.
In above-mentioned, described single chip processing module uses 32 ARM single-chip microcomputers；Described liquid crystal display uses 12864 liquid crystal displays.
The function of all parts is as follows:
Multiplexer channel selects switchboard: realize the program control switching of test point, and flexible PCB number of test points has to have more and lacks, therefore with analog switch switch test passage, thus it is automatically performed the test of each function of flexible PCB；
Multi-channel signals generator and measuring unit: can be switched to corresponding signal source and corresponding measuring unit for different functional tests, by configuration step control, flexibility is high；
32 ARM one-chip computer modules: be the maincenter of whole system, control the switching of TCH test channel, signal source, measuring unit, system properly functioning, debug, show；
12864 liquid crystal displays: for showing checking of test result and measurement result；
Computer configuration software: for testing procedure parameter editor, import, derive.
The universal multichannel flexible circuit board FPC comprehensive function test device of the present invention, mainly on the basis of special FPC tests, test event is become step one by one by software encapsulation, different FPC machine tests is called corresponding testing procedure one by one by computer configuration software and can be tested, and can significantly shorten the construction cycle, improve test coverage, precision, stability.
The generalization of hardware circuit and software encapsulation test event be testing procedure be crucial innovation:
The generalization of hardware circuit: by using multichannel to switch, multiple measurement signal source switches and multi-signal measuring method, the hardware circuit needed for each test event can be realized, thus provide hardware foundation for universal test；
Software encapsulation test event is testing procedure: test event can be decomposed the combination of different parameters by software analysis, computer configuration software imports to the parameter of each step on testing host by RS232 serial ports or USB interface, can complete software merit rating.
As in figure 2 it is shown, in described computer the menu of software of configuration include switchboard self-inspection SWcheck, look for a SearchPin, open short circuit study LearnOS, step debugging Debug, waveform check LookWave, start Start, reset Stop and import and export step.
In described computer, the packaging and testing project of configuration is made up of sequence number, step name, standard value, measured value, upper percentage %, lower percentage %, high point, low spot, time delay, pattern, ratio K, skew B, average P, special T, high point 2 and low spot 2 16 parameters altogether.
Wherein, in the computer stated, the function of the packaging and testing project of configuration also includes PgUp page up, OneStep single step, Save preserves one page under step, PgDown, Inport imports, Export derives, Start starts, Stop resets.
The universal multichannel flexible circuit board FPC comprehensive function test device of the present invention, compared to prior art, has the advantage that
1, FPC test all-purpose, field personnel, by the amendment of testing procedure parameter can adapt to the change of machine, shortens the construction cycle, easy to maintenance；
2, easy computer configuration software, user of service requires no the training of specialty and gets final product left-hand seat；
3, multichannel switching, multiple testing source and multiple measuring unit, improve test coverage, precision, stability；
4, Common Testing system can be mass-produced, and reduces cost；
5, test system compact, convenient installation.
In sum, the one universal multichannel flexible circuit board FPC comprehensive function test device of the present invention, the functional test of the various components and parts of FPC can be realized, and computer is configured with software and packaging and testing project, FPC test all-purpose, field personnel, by the amendment of testing procedure parameter can adapt to the change of machine, shortens the construction cycle, easy to maintenance, improve test coverage, precision, stability.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (7)
1. a universal multichannel flexible circuit board FPC comprehensive function test device, it is characterized in that, switchboard is selected including multiplexer channel, multi-channel signals generator and measuring unit, single chip processing module, liquid crystal display and computer, described multiplexer channel selects switchboard to be connected with multi-channel signals generator and measuring unit, described liquid crystal display is connected with multi-channel signals generator and measuring unit by single chip processing module, described computer is connected with single chip processing module with USB communication interface by RS232 serial ports, wherein, described computer is configured with software and packaging and testing project.
Universal multichannel flexible circuit board FPC comprehensive function the most according to claim 1 test device, it is characterised in that described single chip processing module uses 32 ARM single-chip microcomputers.
Universal multichannel flexible circuit board FPC comprehensive function the most according to claim 1 test device, it is characterised in that described liquid crystal display uses 12864 liquid crystal displays.
Universal multichannel flexible circuit board FPC comprehensive function the most according to claim 1 test device, it is characterized in that, described universal multichannel flexible circuit board FPC comprehensive function test device also includes that constant-current source and instrument amplifier, described constant-current source and instrument amplifier are arranged at multi-channel signals generator and measuring unit is interior and select switchboard to be connected with multiplexer channel respectively.
Universal multichannel flexible circuit board FPC comprehensive function the most according to claim 1 test device, it is characterized in that, in described computer the menu of software of configuration include switchboard self-inspection SWcheck, look for a SearchPin, open short circuit study LearnOS, step debugging Debug, waveform check LookWave, start Start, reset Stop and import and export step.
Universal multichannel flexible circuit board FPC comprehensive function the most according to claim 1 test device, it is characterized in that, in described computer, the packaging and testing project of configuration is made up of sequence number, step name, standard value, measured value, upper percentage %, lower percentage %, high point, low spot, time delay, pattern, ratio K, skew B, average P, special T, high point 2 and low spot 2 16 parameters altogether.
Universal multichannel flexible circuit board FPC comprehensive function the most according to claim 6 test device, it is characterized in that, in described computer, the function of the packaging and testing project of configuration also includes PgUp page up, OneStep single step, Save preserves one page under step, PgDown, Inport imports, Export derives, Start starts, Stop resets.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610521859.6A CN105891702A (en) | 2016-07-05 | 2016-07-05 | General type multichannel testing device for comprehensive functions of flexible printed circuit board (FPC) |
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| CN201610521859.6A CN105891702A (en) | 2016-07-05 | 2016-07-05 | General type multichannel testing device for comprehensive functions of flexible printed circuit board (FPC) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462825A (en) * | 2017-08-08 | 2017-12-12 | 吉林师范大学 | For detecting FPCA and PCBA signal output method and equipment |
| CN107861051A (en) * | 2017-11-24 | 2018-03-30 | 江苏力德尔电子信息技术有限公司 | A kind of SCM Based universal precision impedance test system |
| CN112505524A (en) * | 2020-11-24 | 2021-03-16 | 上海趣立信息科技有限公司 | Multichannel FPC testing arrangement |
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| CN202033454U (en) * | 2011-04-07 | 2011-11-09 | 柒拾陆 | Automatic circuit board test system |
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| CN206248776U (en) * | 2016-07-05 | 2017-06-13 | 苏州市周至电子科技有限公司 | Universal multichannel flexible circuit board FPC comprehensive function test devices |
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2016
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Patent Citations (5)
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| CN101281231A (en) * | 2008-05-22 | 2008-10-08 | 株洲南车时代电气股份有限公司 | Method for testing locomotive general-purpose circuit board function |
| CN101334448A (en) * | 2008-05-23 | 2008-12-31 | 深圳市同洲电子股份有限公司 | Test platform and method for testing PC board |
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| CN107462825A (en) * | 2017-08-08 | 2017-12-12 | 吉林师范大学 | For detecting FPCA and PCBA signal output method and equipment |
| CN107462825B (en) * | 2017-08-08 | 2019-11-29 | 吉林师范大学 | For detecting the signal output method and equipment of FPCA and PCBA |
| CN107861051A (en) * | 2017-11-24 | 2018-03-30 | 江苏力德尔电子信息技术有限公司 | A kind of SCM Based universal precision impedance test system |
| CN112505524A (en) * | 2020-11-24 | 2021-03-16 | 上海趣立信息科技有限公司 | Multichannel FPC testing arrangement |
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Application publication date: 20160824 |